C++ Program to Find Area of Triangle

Here you will know about Area of Triangle and get and the example code of C++ Program to Find Area of Triangle.

Area of triangle formula

A = 1/2 * b * h

where A is the area of the triangle, b is the base of the triangle, and h is the height of the triangle.

#include <iostream>

#include <cmath>

using namespace std;

int main()

{

float a, b, c;

cout << "Enter three sides of triangle: ";

cin >> a >> b >> c;

// calculate semi-perimeter

float s = (a + b + c) / 2;

// calculate area

float area = sqrt(s * (s - a) * (s - b) * (s - c));

cout << "Area of triangle is : " << area;

return 0;

}

Output

Enter three sides of triangle: 4
5
7
Area of triangle is : 9.79796